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Main Air Vents

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Lonnie Crawford
Lonnie Crawford Member Posts: 8
in THE MAIN WALL
I apparently have a machanical return one-pipe system with steam traps and a condensate pump. No reference to main steam line air vents is made in some of the diagrams I have seen for these systems. Does this system need a main steam line air vent? The run is about 50'.

Lonnie

Comments

  • Big Ed
    Big Ed Member Posts: 1,117
    Yes

    You need a main vent , look at the end of the main , after the last radiator or on the trap.... Clue if working , all the radiators start to heat at the same time. If they heat in series a main vent needs service or one installed...
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